/Engine/Source/Runtime/Engine/Public/LevelInstance/LevelInstanceSubsystem.h
[ILevelInstanceInterface](API\Runtime\Engine\LevelInstance\ILevelInstanceInterface) * CreateLevelInstanceFrom ( const [TArray](API\Runtime\Core\Containers\TArray)< [AActor](API\Runtime\Engine\GameFramework\AActor) * > & ActorsToMove, const [FNewLevelInstanceParams](API\Runtime\Engine\LevelInstance\FNewLevelInstanceParams) & CreationParams )